20334342321 has 12 divisors (see below), whose sum is σ = 29413736820. Its totient is φ = 13536885600.

The previous prime is 20334342319. The next prime is 20334342397. The reversal of 20334342321 is 12324343302.

20334342321 is a `hidden beast` number, since 2 + 0 + 334 + 3 + 4 + 2 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11785490721 + 8548851600 = 108561^2 + 92460^2 .

It is not a de Polignac number, because 20334342321 - 2¹ = 20334342319 is a prime.

It is a super-2 number, since 2×20334342321² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20334347321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1605226 + ... + 1617843.

It is an arithmetic number, because the mean of its divisors is an integer number (2451144735).

Almost surely, 2^20334342321 is an apocalyptic number.

It is an amenable number.

20334342321 is a deficient number, since it is larger than the sum of its proper divisors (9079394499).

20334342321 is a wasteful number, since it uses less digits than its factorization.

20334342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223776 (or 3223773 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20334342321 its reverse (12324343302), we get a palindrome (32658685623).

The spelling of 20334342321 in words is "twenty billion, three hundred thirty-four million, three hundred forty-two thousand, three hundred twenty-one".